oj.uz

답안 #145606

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
145606 2019-08-20T13:43:19 Z MKopchev 시간이 돈 (balkan11_timeismoney) C++14
90 / 100
 2000 ms 760 KB 
#include<bits/stdc++.h>
using namespace std;
const int nmax=200+42;
struct edge
{
    int u,v;
    int time,money;
    long long cost;
};
int n,m;
edge inp[nmax*nmax];
pair<long long,long long> best={1e9,1e9};
vector< pair<int,int> > output;

int parent[nmax];
int root(int node)
{
    if(parent[node]==node)return node;
    parent[node]=root(parent[node]);
    return parent[node];
}
bool cmp(edge a,edge b)
{
    return a.cost<b.cost;
}
pair<long long,long long> mst(pair<long long,long long> add)
{
    for(int i=0;i<n;i++)
        parent[i]=i;

    pair<long long,long long> now={0,0};
    vector< pair<int,int> > in={};
    for(int i=1;i<=m;i++)
    {
        inp[i].cost=add.first*inp[i].time+add.second*inp[i].money;
        //cout<<i<<" -> "<<inp[i].cost<<endl;
    }

    sort(inp+1,inp+m+1,cmp);
    for(int i=1;i<=m;i++)
    {
        if(root(inp[i].u)!=root(inp[i].v))
        {
            parent[root(inp[i].u)]=root(inp[i].v);
            in.push_back({inp[i].u,inp[i].v});
            now.first+=inp[i].time;
            now.second+=inp[i].money;
        }
    }

    if(now.first*now.second<best.first*best.second)
    {
        best=now;
        output=in;
    }

    //cout<<add.first<<" "<<add.second<<" -> "<<now.first<<" "<<now.second<<endl;

    //system("pause");

    return now;
}
bool test(pair<long long,long long> q)
{
    return q.first>1e9||q.second>1e9;
}
void solve(pair<long long,long long> l,pair<long long,long long> result_l,pair<long long,long long> r,pair<long long,long long> result_r,int in)
{
    if(result_l==result_r)return;

    if(in>30)return;
    if(test(l)||test(r))return;

    pair<long long,long long> av={l.first+r.first,l.second+r.second};

    pair<long long,long long> result_av=mst(av);

    solve(l,result_l,av,result_av,in+1);
    solve(av,result_av,r,result_r,in+1);
}
int main()
{
    scanf("%i%i",&n,&m);
    for(int i=1;i<=m;i++)
    {
        scanf("%i%i%i%i",&inp[i].u,&inp[i].v,&inp[i].time,&inp[i].money);
    }

    solve({1,0},mst({1,0}),{0,1},mst({0,1}),0);

    printf("%lld %lld\n",best.first,best.second);
    for(auto k:output)
        printf("%i %i\n",k.first,k.second);
    return 0;
}

Compilation message

timeismoney.cpp: In function 'int main()':
timeismoney.cpp:83:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%i%i",&n,&m);
     ~~~~~^~~~~~~~~~~~~~
timeismoney.cpp:86:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%i%i%i%i",&inp[i].u,&inp[i].v,&inp[i].time,&inp[i].money);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
90.0 / 100.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 380 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 3 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 3 ms 376 KB Output is correct
8 Correct 8 ms 632 KB Output is correct
9 Correct 2 ms 252 KB Output is correct
10 Correct 3 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 4 ms 256 KB Output is correct
13 Correct 5 ms 376 KB Output is correct
14 Correct 59 ms 416 KB Output is correct
15 Correct 41 ms 376 KB Output is correct
16 Correct 820 ms 476 KB Output is correct
17 Correct 850 ms 504 KB Output is correct
18 Correct 820 ms 508 KB Output is correct
19 Execution timed out 2056 ms 632 KB Time limit exceeded
20 Execution timed out 2055 ms 760 KB Time limit exceeded